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Date:   Tue, 17 Mar 2020 19:58:29 +0100
From:   Daniel Borkmann <>
To:     Andrii Nakryiko <>,,,
Subject: Re: [PATCH bpf-next 1/3] selftests/bpf: fix race in tcp_rtt test

On 3/14/20 2:39 AM, Andrii Nakryiko wrote:
> Previous attempt to make tcp_rtt more robust introduced a new race, in which
> server_done might be set to true before server can actually accept any
> connection. Fix this by unconditionally waiting for accept(). Given socket is
> non-blocking, if there are any problems with client side, it should eventually
> close listening FD and let server thread exit with failure.
> Fixes: 4cd729fa022c ("selftests/bpf: Make tcp_rtt test more robust to failures")
> Signed-off-by: Andrii Nakryiko <>

Series applied, thanks!

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